Milk and cream cooler and aerator



June 13, 1933- J. c. SKARSTAD MILK AND CREAM COOLER AND AERATOR Filed July 5, 1950 Xma @usflwrney Patented June 13,. 1933 UNITED SIATES PATENT am n crema ns cmmu csmnm ei? mo m mums, Mmnnsom MILKAND cnnqaj vx coonna Ann AnRA'ron a pnc ua gmea m a, 1930i Ser iaI No. 465,487. it 5 v 7 .Thisin'ventm'n relates to coolers and aerators for milk and cream;

i it His the obj ect of this inventionto provide a novel and improved cooler and aerator of cheap and simple construction which can be effectively used to carry off the animal heat frommilk and cream to prevent the develop ment of undesirable bacteria in the milkand cream.-. .2 10 To thisend, the invention consists in the novel; parts and .novel combinations of parts, hereinafter-definedin the claims and de-. scribed in thefo1lowing specification, made in connection with the accompanying draw 1 ing wherein, likereference; characters refer to: thesameor similar parts throughout the venous views ,.and inwhich,

a handle being brokeniaway; H

i Fig. 2isa1plan view ofthe cooler and aerator, certain partsof the i cover being'broken aWay-toqmore; clearlyishow the construction 5 f ed vicer p Fig.3;is a viewv inside elevatiohyofthe can with the cover, removed applied to.pore' w u a a cover 18for thecan is provided and thls.

tions of a: cream. separator 5. 1. a

Fig. 4 's a vertical section a tanlt m c n ect o with whi e ivcoole and aerators may be used,; a :pairjof the devices being illustrated/and. one gof them being shown in i vertical ,section -and ,the other 1 in side elevatiomand "w l I i a Fig.1 5 is 1a vertical. section lower portion 10f a device and illustrating a slightly. different type of closure for the centraltube than theitype, illnstrated in Figs. 1 and 4. i i

4 erably provided with abead at its-top edge Referring to the drawing, andfin accord Qentrallymonnted the and projecting upwardly jsome little distance above the top of the can and extending through the bottom 7 some j little distance below the bottom but in upwardly spacedv relation from so the lower edge of the can, isa large tube 8. The upper end of the tube 8 is centered in the can bymeans of a ring 9 encompassing the tube and secured to the sides ofthe can means of. arms 10.1 Applied between the 55 tube 8 andithe sides of the can, and resting on thearmslO is an annular screen ll which preferably is providedwith an elipseshaped opening 11a to receive the; discharge spout of acream separator. The lower end ofthe p tube 8, as shown in Figs. land {1, maybe pro v I videdwithgexterior threads "12 to receive a L Fig. 1 1s a .Viewtakenhhiefiy in vertical section through; the cooler and aerator; sub-g .20 \stantially ontheline 11 of Fig. 2, the bail.

cap 13 carrying a washerl ls adapted to be seated: tightly against the lower end of the tube to closethe same. If clesired,;how-, 6 5;

ig: if m d om erk, b t m i a eriala A pair of ears 16 are secured to the outersrde 7Q;

bailshaped handled? a v of the can at dialnetrical points toreceivea coverincludes a substantiallycylindrical portion 18o having s ower beadededge, annp; 7 5

lVhen the coverElSisapplied to the top of so the can 6, the beadednpper edge of the will make a close fit with the cover 1 at pomts where the portion. 18cjoins the portion 18?) r. and the funneLlike portion 18cwillproject downwardly into; the upper end of the tube 8 8?,

a short distance belowthe top edge thereof, The funnel; like portiOn lBc will also be inwardly: spaced] from the upper end of the tubeSQ.

is formed between the tube 8 and the side walls of the can 6 and this chamber may be used for receiving and holding milk or cream. The tube 8 will also form a chamber 20 which may or may not be closed, as desired, by the cap 13 or the plug 15. When the cover 18 is applied to the can, it will be seen that there is a free passage provided for the circulation of air from the top of chamber 19 outwardly through the central opening in the cover.

In F ig. 3, portions of a cream separator are illustrated including the bowl 21, dis charge spout 22 and hook bracket 23 for supporting the bail handle of a can. It is, of course, very desirable in handling milk and cream that the milk and cream be cooled as quickly as possible after the milk is taken from the cow and separated. This is desirable in order that the animal heat in the milk and cream may be removed to prevent'the development of obnoxious bacteria in the same.

Vith the present device, the milk and cream can be cooled immediately as it is drawn off from the separator. Before separating the milk and cream, the cover 18 of the cooler and aerator will be removed and the cap 13 or plug 15 will be applied to the tube 8 to close the lower end of the chamber 20. Cold water or ice may then be applied within the chamber 20 to fillthe same, whereupon the spout 22 may be fitted within the opening 11a in the screen 11 and the cooler may be supported, by the handle 17 from the hook 23 of the separator. The cream or milk may then be run from-the separator directly into the chamber 19 and the cold water or ice in the chamber 20 will act to carry off 7 a great deal of the animal heat of the cream or milk. The screen 11 will prevent flies, bugs and other insects from obtaining access to the cream or milk. After the milk and creamhave been separated, the cover 18 may be applied to the can 6 and the can may be supported as illustrated in Fig. 4 within a cooling tank. The tank 24 illustrated has a drain pipe 25 adjacent its upper end and cold water is carried to the tank by means of a water conduit 26 having any desired number of valve controlled faucets 27 attached thereto, the said faucets preferably being provided with hooks'for supporting the bail handles of cans. Before the cooler and aerator of the present invention is lowered into the tank 24, the cap 13 or plug 15 will be removed so that the lower end of the chamber 20 will be open. The device may thenbe supported as illustrated in Fig. 4

, from one of the faucets by means of bail handle 17 so that the central portion of the cover 18 will be disposed below the faucet. The faucet may then be turned on to cause cold water to circulate downwardly throughv the chamber 20 to the bottom of the tank.

As the portion 180 of the cover projects inwardly from the upper end of the tube 8 and downwardly therefrom, it will be seen that no water will run into the chamber 19 from the faucet. The can will be supported so that its top edge is above the drain 25 to prevent the flow of water over the top of the can into the chamber 19. When the water in the tank 24 reaches the level of the drain 25, the cream or milk can be very rapidly cooled due to the fact that a stream of cold water circulates through the center of the body of milk or cream to absorb the animal heat of the same and also the cold water surrounds the can to absorb the heat of the milk or cream. As the coldest water from the faucet 27' is admitted to the top of the chamber 20, and as the warmest points in the body of the cream or milk is at the top of the chamber 19, itwvill beseen that a very eflicient cooling action is obtained. Also due to the positioning of the drain 25 adjacent the top of the tank 24, the warmest water in the tank will be continually drained oil so that the temperature in the water of the tank will remain low at all times. As there is a free passagefor the circulation of air from the top of chamber 19 between the top'of tube 8 and portion 180 of the cover and thence outwardly through the opening in the center of the cover, the cream or milk will be properly aerated and the gases and fumes from the cream or milk passing off from the same during the cooling process will be quickly carried away.

As the screen 11 may be readily removed after the cover 18 is taken off the can, it will be seen that all parts of the device can be readily washed and sterilized. The device is extremely simple in construction and the cream or milk can be cooled in much shorter time than with the ordinary type of cream or milk can. Of course, if a tank such as the tank 24 is not available, the cream or milk may be completely cooled by fillingthe chamber 20 with cold water or ice, after the cap 13 or plug 15 has been applied to the tube 8. The present device has been successively demonstrated in actual practice. Although it is preferred to make the parts-of the device circular in shape for ease in construction, it will be understood that the parts may be of any annular shape. It is, of course, possible to use the device for cooling other fluids or solid matter than milk or cream.

It will be understood that various changes maybemade in the form, details, arrange'-' ment and proportions of the various parts without departing from the scope of the pres ent invention.

What is claimed is 1. A milk' and cream cooler and aerator comprising a can having sidewalls and a bottom, an open ended tube extending through the central portion of the can in inwardly spaced relation from'the sides there- 'Iio of and projecting throughthebottom of the can, the space between said tube and said side wallsforming a cream cooling chamber and said tube forming a cooling fluid chamber open at both ends, a cover adapted to be secured at-the top of said can and having a downwardly and centrally extending funnelshapedportion extending into the upper end of the said tube in spaced relation from the sides thereof. i a

i 2. The structure defined in claim 1, and means for closing the lower end of said tube. 3. A milk and cream cooler and aerator comprising a can, a tube disposed in central relation relative to the sides thereof,a cover fitting the top of thecan and having a central portion projecting over the top of said tube and into said tubein inwardly spaced relation from the walls thereof, said central portion having an opening therethrough in communication with said tube, the space between said side walls and said tube forming a cream cooling chamber and said tube form- V inga cooling fluid chamber open at both ends, and a screen mounted in the upper end of said, can between said tube and the walls of the can. i

In testimony whereof I aifix my signature. JAMES CLARENCE SKARSTAD. 

